WO2018029937A1 - Dispositif d'alimentation électrique - Google Patents

Dispositif d'alimentation électrique Download PDF

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Publication number
WO2018029937A1
WO2018029937A1 PCT/JP2017/018947 JP2017018947W WO2018029937A1 WO 2018029937 A1 WO2018029937 A1 WO 2018029937A1 JP 2017018947 W JP2017018947 W JP 2017018947W WO 2018029937 A1 WO2018029937 A1 WO 2018029937A1
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WO
WIPO (PCT)
Prior art keywords
power
container
battery
power storage
power supply
Prior art date
Application number
PCT/JP2017/018947
Other languages
English (en)
Japanese (ja)
Inventor
直之 菅野
和三 佐藤
真実 岡田
康宏 渡辺
亮 田辺
Original Assignee
株式会社村田製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社村田製作所 filed Critical 株式会社村田製作所
Priority to EP17839012.6A priority Critical patent/EP3499604A4/fr
Publication of WO2018029937A1 publication Critical patent/WO2018029937A1/fr
Priority to US16/271,440 priority patent/US11183727B2/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/222—Inorganic material
    • H01M50/224—Metals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/298—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the wiring of battery packs
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/251—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • This technology relates to a power supply device using, for example, a lithium ion secondary battery.
  • a power storage system as a power supply device using a large number of power storage modules in which a plurality of single cells (also referred to as battery cells) are connected in series.
  • the power storage system can supply power to a load such as a lighting device in a factory at the time of a power failure, and can be used to level the power load.
  • a plurality of power storage modules are mounted on a battery rack, and a battery rack on which the power storage module is mounted, an AC / DC converter, a control unit, etc. are stored in a container (container-type power storage system and (Referred to as appropriate).
  • An AC / DC converter is one of the components of the electricity storage system.
  • the AC / DC converter is a circuit device having both a converter function for converting AC to DC and an inverter function for generating AC from DC.
  • AC / DC converters often generate noise with high-power switching operations, and noise is generated on power lines. When performing digital communication of control signals in a power storage system, there is a risk that the control operation may not be performed normally due to the influence of noise generated in the AC / DC converter.
  • Patent Document 1 describes a vehicle storage battery system including a storage battery, a battery controller, a power switching circuit, and an AC / DC inverter.
  • Patent Document 1 does not relate to a container-type power storage system, but a vehicle storage battery system. The problem in the container-type power storage system is not described in Patent Document 1.
  • an object of the present technology is to provide a power supply device that prevents electric shock and prevents the control operation from being affected by noise generated in the AC / DC converter.
  • the technology includes a container made of a conductive material, A battery rack made of a conductive material housed in a container and insulated from the container; A plurality of power storage modules mounted on the battery rack and having a grounding point connected to the battery rack; A power supply device comprising: a battery rack; and a grounding means for connecting a ground outside the container.
  • the present technology is grounded independently from the AC / DC converter that is a source of noise. It can be performed. Therefore, it is possible to prevent the possibility that noise propagates to the power storage module M through grounding and malfunctions due to the influence of noise.
  • the ground location of the power storage module is connected to the ground outside the container through the battery rack, stray capacitance can be prevented from being generated, and electric shock can be prevented even if the power storage module is accidentally contacted.
  • the effects described here are not necessarily limited, and may be any of the effects described in the present technology.
  • FIG. 1 is a block diagram illustrating a system configuration according to an embodiment of the present technology. It is a basic diagram of the container internal structure for demonstrating the conventional structure. It is a connection diagram which shows the connection of the electrical storage module in the string for demonstrating the conventional structure. It is a basic diagram of a container internal structure for demonstrating the structure of one embodiment of this technique. It is a connection diagram which shows the connection of the electrical storage module in the string of one embodiment of this technique. It is a schematic perspective view which shows the structure inside the container of one embodiment of this technique. It is the schematic which shows the electrical storage system for houses to which this technique was applied.
  • FIG. 1 is a block diagram illustrating a configuration of an example of a power storage system according to an embodiment of the present technology.
  • a power storage system according to an embodiment of the present technology includes a power storage device including a plurality of power storage modules, for example, 16 power storage modules M1 to M16 and a battery management unit BMU, A line concentrator (BMU hub) HUB connected to the battery management unit BMU via a communication line Lc as a communication path, an AC / DC converter INV (Power Conditioning System), and a system controller SYS are provided.
  • a battery management unit BMU which is a common controller, is provided for the power storage modules M1 to M16.
  • a power storage device including the power storage module M and the battery management unit BMU is referred to as a string ST.
  • strings ST1 to ST14 connected in parallel are connected to the AC / DC converter INV.
  • the string ST suitably.
  • the number of power storage modules or strings and the connection form of the strings are not limited to those described above, and various settings can be made.
  • Storage modules M1 to M16 are connected in series. In addition, when it is not necessary to distinguish each electrical storage module, it describes with the electrical storage module M suitably.
  • the connection form of the power storage module M can be changed as appropriate. For example, two power storage modules connected in series may be connected in parallel, and eight parallel connections may be connected in series.
  • power is supplied from the outside 1, and charging power is supplied from the outside 1 to the power storage module M via the power line through the AC / DC converter INV.
  • the external 1 is a load, an AC power system, etc., and is set according to the use of the power storage system. For example, a three-phase three-wire 400V power line in a factory.
  • the DC power supplied from the power storage module M is converted into AC power and supplied to the outside 1.
  • AC power supplied from the outside 1 is converted into DC power and supplied to the power storage module M to charge the power storage module M.
  • An example of the electricity storage module M includes an exterior case, a battery block accommodated in the exterior case, and the like.
  • the outer case it is desirable to use a material having high conductivity and emissivity, for example.
  • a material having high conductivity and emissivity By using a material having high conductivity and emissivity, excellent heat dissipation in the outer case can be obtained. By obtaining excellent heat dissipation, temperature rise in the outer case can be suppressed. Further, the opening of the outer case can be minimized or eliminated, and high dustproof and drip-proof properties can be realized.
  • a material such as aluminum, an aluminum alloy, copper, or a copper alloy is used. This outer case serves as a grounding location for the charging module M.
  • the battery block is, for example, a plurality of (for example, 16) lithium ion secondary batteries connected in parallel. In the exterior case, for example, a plurality of battery blocks are connected in series. The number and connection form of the battery blocks can be changed as appropriate.
  • a battery management unit BMU which is a host controller, is commonly provided for a plurality of power storage modules M.
  • the battery management unit BMU collects data from each power storage module M. That is, data on the voltage, SOC (State Of Charge: remaining capacity ratio), charging current, discharging current, and battery temperature of each battery cell of each battery module M is acquired via communication.
  • Bidirectional communication between the power storage module M and the battery management unit BMU according to the serial communication standards such as I2C, SMBus (System Management Bus), SPI (Serial Peripheral Interface), CAN (Controller Area Network) Is done. Communication may be wired or wireless.
  • the battery management unit BMU controls charging permission or charging prohibition of the plurality of power storage modules M.
  • the battery management unit BMU receives a command from the line concentrator HUB through communication and controls charging permission or charging prohibition.
  • the battery management unit BMU transmits a charge permission command to the power storage module M that has been determined to be charged.
  • the power storage module M that has received the charge permission command turns on the charge switch element. However, when a condition such as overcharging of the battery is established, the charging switch element is turned off.
  • the power storage module M that does not receive the charge permission command turns off the charge switch element.
  • the power storage module M has a battery part in which a plurality of lithium ion secondary batteries are connected in series as a battery part. Cell balance control of each lithium ion secondary battery is performed. Furthermore, a voltage detection unit that detects a voltage between terminals of the battery unit, a temperature detection unit that detects the temperature of the battery unit, and a current detection unit are provided. The detected voltage, temperature and current are converted into digital data and supplied to the battery monitor.
  • the battery monitor monitors the digital voltage data and digital temperature data, and monitors for battery abnormalities. For example, if the voltage indicated by the digital voltage data is a voltage that is a standard for overcharge or a voltage that is a standard for overdischarge, an abnormality notification signal that indicates that there is an abnormality or that an abnormality may occur Is generated. Further, the battery monitor similarly generates an abnormality notification signal when the temperature of the battery or the temperature of the entire power storage module M is larger than the threshold value. In addition, the battery monitor monitor monitors the digital current data. When the current value indicated by the digital current data is larger than the threshold value, the battery monitor generates an abnormality notification signal. The abnormality notification signal generated by the battery monitor is transmitted to the battery management unit BMU by the communication function of the battery monitor.
  • the battery monitor monitors the presence or absence of the abnormality described above, and transmits digital voltage data and digital current data to the battery management unit BMU via communication. Further, the battery management unit BMU and the concentrator HUB communicate to transmit voltage data, current data, temperature data, etc. of each power storage module M to the concentrator HUB.
  • the battery management unit BMU includes switches such as an MCU (Module controller), a charge switch, and a discharge switch.
  • the MCU is composed of a CPU (Central Processing Unit) having a communication function, and controls each power storage module M.
  • the battery management unit BMU notifies the concentrator HUB of the abnormality using the communication function.
  • the concentrator HUB appropriately controls the string ST such as sending a command to the battery management unit BMU by communication and stopping charging or discharging.
  • the battery management unit BMU and the line concentrator HUB are connected to each other via the communication wiring Lc.
  • the plurality of battery management units BMU and the power storage module M are connected to each other via the communication wiring Lc.
  • CAN, RS232C, RS485, etc. are used as the communication wiring Lc.
  • the concentrator HUB communicates with the battery management unit BMU to monitor the state of the plurality of strings ST (the plurality of power storage modules M). Further, the line concentrator HUB notifies the system controller SYS and the AC / DC converter INV of the state of the plurality of strings ST (the plurality of power storage modules M). The line concentrator HUB receives commands from the system controller SYS and the AC / DC converter INV through communication, and gives commands to the battery management unit BMU through communication to control the battery management unit BMU.
  • the concentrator HUB may have a control function, and the concentrator HUB may monitor and control a plurality of strings ST (a plurality of power storage modules M).
  • the concentrator HUB includes, for example, the number of series connections of the strings ST, the number of parallel connections, the total number of connections of the strings ST, the number of series connections and / or parallel connections of the storage modules M of each string, and the storage modules M Connection information such as the number of connections is held.
  • This connection information is set by, for example, an operator (user) operating a user interface (user interface) of the concentrator HUB or transmitting connection information from the system controller SYS to the concentrator HUB.
  • the concentrator HUB may store power storage module information related to the current voltage, current, temperature, etc. of each power storage module M. This power storage module information is acquired, for example, when the line concentrator HUB communicates with the battery management unit BMU.
  • the concentrator HUB communicates with each battery management unit BMU, and the voltage of each string ST is a predetermined voltage (a voltage lower than the upper limit voltage by a predetermined voltage or lower than the lower limit voltage).
  • the concentrator HUB is connected to each battery management unit.
  • the battery management unit BMU that receives the instruction from the concentrator HUB performs control so as to change the current value that flows to the string ST, thereby communicating with the BMU and instructing the current value change.
  • the power consumption of the load connected to the external 1 is monitored, and when the power load increases, the power storage module in addition to the power from the system power The output power is supplied to the load to level the power load. Further, when a power failure occurs in the system, the system power is disconnected and power is supplied from the power storage module to the load.
  • FIG. 2 shows the inside of a container-type power storage system having a conductive container 11 divided into two by a dividing line in the longitudinal direction. There is a passage that is wide enough for a person to walk in the center of the container-type power storage system, and the configuration shown in FIG. 2A and the configuration shown in FIG.
  • the strings ST1 to ST7 are provided on the side shown in FIG. 2A, and the strings ST8 to ST14 are provided on the opposite side shown in FIG. 2B.
  • the plurality of battery racks can be mechanically and electrically connected to each other.
  • an AC / DC converter INV, a DC input / output panel 12, and the like are accommodated.
  • a wiring duct is provided in the ceiling of the container 11.
  • a DC power line Lp, a communication line Lc, and the like are passed through the wiring duct.
  • the container 11 is connected to the ground through the grounding means 13.
  • the power storage module M of each string ST is placed on the shelf board of the battery rack and electrically connected to the shelf board.
  • the battery rack of each string ST is electrically connected to the container 11 and grounded through the container 11.
  • the AC / DC converter INV and the DC input / output panel 12 are also electrically connected to the container 11 and grounded through the container 11.
  • FIG. 3 shows a conventional configuration example related to the string ST1.
  • the other strings ST2 to ST14 have the same configuration as the string ST1.
  • the ground locations of the power storage modules M1 to M16 are electrically connected to the shelf board of the battery rack 14.
  • the ground line 15 of the battery rack 14 is connected to the container 11.
  • the container 11 is connected to the ground through the grounding means 13 as described above.
  • the power storage modules M1 to M16 are connected in series, and the positive side and the negative side of the serial connection are connected to the battery management unit BMU.
  • the battery management unit BMU and the AC / DC converter INV are connected by a DC power line Lp.
  • the communication terminals of the power storage modules M1 to M16 are sequentially connected and connected to the communication terminal of the battery management unit BMU.
  • the battery management unit BMU and the system controller SYS are connected by a communication line Lc.
  • FIG. 3 illustration of the concentrator HUB for collecting the communication wires Lc of a plurality of strings is omitted.
  • the grounding location of the power storage module M is connected to the ground through the battery rack 14 and the container 11.
  • stray capacitance may be formed between the ground location of the power storage module M and the ground, and there is a risk of electric shock if the power storage module M is touched by mistake.
  • noise generated in the AC / DC converter INV or the like propagates from the DC power wiring Lp to the communication wiring Lc, or noise propagates to the control unit such as the battery management unit BMU of the power storage module M through the ground wiring to perform control operation. There was a risk of being affected.
  • FIG. 4 shows the inside of the container-type power storage system having the container 11 divided into two by a dividing line in the longitudinal direction. There is a passage that is wide enough for a person to walk in the center of the container-type power storage system, and the configuration shown in FIG. 4A and the configuration shown in FIG.
  • the strings ST1 to ST7 are provided on the side shown in FIG. 4A, and the strings ST8 to ST14 are provided on the opposite side shown in FIG. 4B.
  • the plurality of battery racks can be mechanically connected to each other, but are electrically insulated.
  • an AC / DC converter INV, a DC input / output panel 12, and the like are accommodated.
  • a wiring duct is provided in the ceiling of the container 11.
  • a DC power line Lp, a communication line Lc, and the like are passed through the wiring duct.
  • the distance between the DC power line Lp and the communication line Lc is made as large as possible so that noise on the DC power line Lp does not jump into the communication line Lc.
  • the respective grounding points of the AC / DC converter INV and the DC input / output panel 12 are connected to the ground outside the container 11.
  • the container 11 is not grounded. However, the container 11 may be grounded, and the grounded portions of the AC / DC converter INV and the DC input / output panel 12 may be connected to the container 11.
  • the battery rack 14 is insulated from the container 11 and further insulated from other adjacent battery racks 14. The battery rack 14 can be insulated using an insulating plate, an insulating sheet, or the like.
  • FIG. 5 shows the string ST1.
  • the other strings ST2 to ST14 have the same configuration as the string ST1.
  • the power storage module M of each string ST is placed on the shelf board of the battery rack, and the grounding locations of the power storage modules M1 to M16 are electrically connected to the shelf board. Sixteen shelf boards of the battery rack 14 are connected to the ground wire Le1.
  • the ground wires Le1 to Le7 derived from the strings ST1 to ST7 are extended to the ground box 21a and converted into one ground wire LE1 in the ground box 21a.
  • the ground lines Le8 to Le14 derived from the strings ST8 to ST14 are extended to the ground box 21b and converted into one ground line LE2 in the ground box 21b.
  • the ground wires LE ⁇ b> 1 and LE ⁇ b> 2 are led out of the container 11 and connected to the ground outside the container 11. Therefore, the battery rack 14, the AC / DC converter INV, and the grounding location of the DC input / output panel 12 are commonly connected to the ground (same potential) outside the container.
  • the power storage modules M1 to M16 are connected in series, and the positive side and the negative side of the serial connection are connected to the battery management unit BMU.
  • the battery management unit BMU and the AC / DC converter INV are connected by a DC power line Lp.
  • the communication terminals of the power storage modules M1 to M16 are sequentially connected and connected to the communication terminal of the battery management unit BMU.
  • the battery management unit BMU and the system controller SYS are connected by a communication line Lc.
  • FIG. 3 illustration of the concentrator HUB for collecting the communication wires Lc of a plurality of strings is omitted.
  • the container 11 and the battery rack 14 are insulated, and the ground outside the battery rack 14 and the container 11 is grounded outside the container 11 through the ground wires Le1 to Le14 and the ground wires LE1 and LE2. Connected. Therefore, since the grounding can be performed independently of the AC / DC converter INV that is the source of noise, noise can be propagated to the power storage module M through the grounding, and control communication can be affected by the noise, thereby preventing a malfunction. can do. In particular, the propagation of noise between strings can be suppressed by providing the ground wire Le independently for each string. Further, since the grounding location of the power storage module M is connected to the ground outside the container 11 through the battery rack 14, it is possible to prevent the generation of stray capacitance, and to prevent electric shock even if the power storage module is accidentally contacted. Can do.
  • a power storage system 9100 for a house 9001 power is stored from a centralized power system 9002 such as a thermal power generation 9002a, a nuclear power generation 9002b, and a hydropower generation 9002c through a power network 9009, an information network 9012, a smart meter 9007, a power hub 9008, and the like. Supplied to the device 9003. At the same time, power is supplied to the power storage device 9003 from an independent power source such as the home power generation device 9004. The electric power supplied to the power storage device 9003 is stored. Electric power used in the house 9001 is supplied using the power storage device 9003. The same power storage system can be used not only for the house 9001 but also for buildings.
  • the house 9001 is provided with a power generation device 9004, a power consumption device 9005, a power storage device 9003, a control device 9010 that controls each device, a smart meter 9007, and a sensor 9011 that acquires various types of information.
  • Each device is connected by a power network 9009 and an information network 9012.
  • a solar cell, a fuel cell, or the like is used, and the generated power is supplied to the power consumption device 9005 and / or the power storage device 9003.
  • the power consuming apparatus 9005 is a refrigerator 9005a, an air conditioner 9005b, a television receiver 9005c, a bath 9005d, or the like.
  • the electric power consumption device 9005 includes an electric vehicle 9006.
  • the electric vehicle 9006 is an electric vehicle 9006a, a hybrid car 9006b, and an electric motorcycle 9006c.
  • the battery unit of the present technology described above is applied to the power storage device 9003.
  • the power storage device 9003 is composed of a secondary battery or a capacitor.
  • a lithium ion battery is used.
  • the lithium ion battery may be a stationary type or used in the electric vehicle 9006.
  • the smart meter 9007 has a function of measuring the usage amount of commercial power and transmitting the measured usage amount to an electric power company.
  • the power network 9009 may be any one or a combination of DC power supply, AC power supply, and non-contact power supply.
  • the various sensors 9011 are, for example, human sensors, illuminance sensors, object detection sensors, power consumption sensors, vibration sensors, contact sensors, temperature sensors, infrared sensors, and the like. Information acquired by the various sensors 9011 is transmitted to the control device 9010. Based on the information from the sensor 9011, the weather condition, the condition of the person, and the like can be grasped, and the power consumption device 9005 can be automatically controlled to minimize the energy consumption. Furthermore, the control device 9010 can transmit information on the house 9001 to an external power company or the like via the Internet.
  • the power hub 9008 performs processing such as branching of power lines and DC / AC conversion.
  • a communication method of the information network 9012 connected to the control device 9010 a method using a communication interface such as UART (Universal synchronous Receiver-Transmitter), Bluetooth (registered trademark), ZigBee (registered trademark).
  • a sensor network based on a wireless communication standard such as Wi-Fi.
  • the Bluetooth (registered trademark) system is applied to multimedia communication and can perform one-to-many connection communication.
  • ZigBee (registered trademark) uses a physical layer of IEEE (Institute of Electrical and Electronics Electronics) (802.15.4). IEEE 802.15.4 is the name of a short-range wireless network standard called PAN (Personal Area Network) or W (Wireless) PAN.
  • the control device 9010 is connected to an external server 9013.
  • the server 9013 may be managed by any one of the house 9001, the electric power company, and the service provider.
  • Information transmitted / received by the server 9013 is, for example, information on power consumption information, life pattern information, power charges, weather information, natural disaster information, and power transactions. These pieces of information may be transmitted / received from a power consuming device (for example, a television receiver) in the home, or may be transmitted / received from a device outside the home (for example, a mobile phone). Such information may be displayed on a device having a display function, for example, a television receiver, a mobile phone, a PDA (Personal Digital Assistant) or the like.
  • a control device 9010 that controls each unit is configured by a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), and the like, and is stored in the power storage device 9003 in this example.
  • the control device 9010 is connected to the power storage device 9003, the home power generation device 9004, the power consumption device 9005, various sensors 9011, the server 9013 and the information network 9012, for example, a function of adjusting the amount of commercial power used and the amount of power generation have. In addition, you may provide the function etc. which carry out an electric power transaction in an electric power market.
  • electric power can be stored not only in the centralized power system 9002 such as the thermal power 9002a, the nuclear power 9002b, and the hydropower 9002c but also in the power storage device 9003 in the power generation device 9004 (solar power generation, wind power generation). it can. Therefore, even if the generated power of the home power generation apparatus 9004 fluctuates, it is possible to perform control such that the amount of power to be sent to the outside is constant or discharge is performed as necessary.
  • the power obtained by solar power generation is stored in the power storage device 9003, and midnight power with a low charge is stored in the power storage device 9003 at night, and the power stored by the power storage device 9003 is discharged during a high daytime charge. You can also use it.
  • control device 9010 is stored in the power storage device 9003.
  • control device 9010 may be stored in the smart meter 9007, or may be configured independently.
  • the power storage system 9100 may be used for a plurality of homes in an apartment house, or may be used for a plurality of detached houses.
  • the technology according to the present technology can be preferably applied to the power storage device 9003.
  • the present technology supplies DC power, it is necessary to convert DC power into AC power for supply to household AC devices.
  • this technique can also take the following structures.
  • a container made of conductive material A battery rack made of a conductive material housed in the container and insulated from the container; A plurality of power storage modules mounted on the battery rack and connected to the battery rack at a grounding location; A power supply apparatus comprising: the battery rack; and a grounding means for connecting a ground outside the container.
  • a plurality of the battery racks are disposed in the container; The power supply device according to (1), wherein the casings of the battery racks and the rack and the container are insulated.
  • AC / DC converter is stored in the container, The power supply apparatus according to any one of (1) to (3), wherein a grounding portion of the AC / DC converter is connected to the ground outside the container.
  • a ground wire for connecting the ground outside the container from each of the plurality of battery racks is derived, The power supply device according to any one of (1) to (4), wherein a ground location of the AC / DC converter is different from a ground location of the plurality of battery racks.
  • An input / output board is stored in the container, The power supply apparatus according to any one of (1) to (5), wherein a grounding portion of the input / output panel is connected to the ground outside the container.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

Le présent dispositif d'alimentation électrique est pourvu : d'un récipient constitué d'un matériau conducteur ; d'un rack de piles, qui est stocké dans le récipient et qui est formé d'un matériau conducteur isolé du récipient ; une pluralité de modules de stockage d'électricité, qui sont placés sur le rack de piles, et dont les zones de mise à la terre sont connectées au rack de piles ; et des moyens de mise à la terre pour relier l'un à l'autre le rack de piles et la terre à l'extérieur du récipient.
PCT/JP2017/018947 2016-08-10 2017-05-22 Dispositif d'alimentation électrique WO2018029937A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP17839012.6A EP3499604A4 (fr) 2016-08-10 2017-05-22 Dispositif d'alimentation électrique
US16/271,440 US11183727B2 (en) 2016-08-10 2019-02-08 Power supply apparatus

Applications Claiming Priority (2)

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JP2016-157234 2016-08-10
JP2016157234A JP6686785B2 (ja) 2016-08-10 2016-08-10 電力供給装置

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KR20210030090A (ko) * 2019-09-09 2021-03-17 주식회사 엘지화학 배터리 랙 및 이를 포함하는 전력 저장 장치
WO2023140667A1 (fr) * 2022-01-19 2023-07-27 주식회사 엘지에너지솔루션 Système de batterie
CN218257821U (zh) * 2022-06-06 2023-01-10 宁德时代新能源科技股份有限公司 电池仓及换电站
KR102463223B1 (ko) * 2022-07-20 2022-11-09 주식회사 태일시스템 무감전 비상전원 시스템
WO2024070688A1 (fr) * 2022-09-30 2024-04-04 株式会社Ｇｓユアサ Système de stockage d'énergie et unité de protection

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JP2013120694A (ja) * 2011-12-07 2013-06-17 Ihi Corp 蓄電システム用絶縁装置
JP2015122817A (ja) * 2013-12-20 2015-07-02 パナソニックＩｐマネジメント株式会社 蓄電制御ユニット及びそれを用いた発電コンテナ
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Publication number Publication date
US11183727B2 (en) 2021-11-23
EP3499604A1 (fr) 2019-06-19
US20190181406A1 (en) 2019-06-13
EP3499604A4 (fr) 2020-04-01
JP6686785B2 (ja) 2020-04-22
JP2018026255A (ja) 2018-02-15

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